Petar Mladenov

Yes, you can use the RadMediaPlayer in a RadBookItem which is ContentControl. We can use the attached project as a starting point. Is it possible for you to modify it (if needed) so that your issue is reproduced ?
Thank you in advance for your cooperation.

Kind regards,
Petar Mladenov
the Telerik team

Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>

Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See Trademarks or appropriate markings.